Which observation would provide the strongest evidence that a machine is a fixed pulley?
The effort and load move in opposite directions.
In a fixed pulley, the effort applied and the load raised move in opposite directions (pulling down on one side lifts the load on the other); the pulley only changes the direction of the force, not its magnitude. Hence, the correct answer is The effort and load move in opposite directions.
Similar Questions
The newton (N) is the SI unit of force. Which of the following expresses one newton (N) in terms of the fundamental SI units (kilogram, metre and second)?
Which of the following situations represents balanced force?
A rescue team uses a long steel rod as a lever to lift a heavy concrete slab. To minimize the force required, where should the fulcrum be positioned?
To lift the same load, Machine P requires an effort of 100 N, while Machine Q requires an effort of 50 N. Which machine has the greater mechanical advantage?
Important Questions from Forces
Which of the following physical quantity is responsible for opening the lid of a bottle?
The use of lubricants makes the surface-
If a box of mass 25 kg is pushed 15 m by a force of ‘F’ N and work done in the process is 480 J. Find F:
If an object moves in a circular path with uniform ________, its motion is called uniform circular motion
Which of the following is an example of contact force?
